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1. Disjoncteur de surpression Condensateur R ceveur Secheur Separateur de liquide Soupape de r injection Soupape d injection Bain de liquide Echangeur Compresseur Ventilateur Vanne solenoide r froidissement Vanne solenoide LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS RL J8 JQ J 10 J11 J 12 J 13 J 14 J 15 J10 J22 J9 O J12 Viel J6 121 1 F2 1 vom JB P CO H i ER DI ES 317 Y4 J16 M3 319 4 1 Y M2 J18 J14 i 5 Ss J2 Stufe 2 Jh i Stufe 1 berdruckschalter Stufe 1 berdruckschalter Stufe 2 Fl ssigkeitsabscheider Kontrollventil Saugseite Stufe 1 Verfl ssiger Stufe 1 Sammelflasche Filtertrockner Expansionsventil Stufe 1 Kontrollventil Druckseite Stufe 1 Warmetauscher Heat exchanger Verdampfer Stufe 1 Exchanger stage 1 Verflussiger Stufe 2 Condenser stage 2 Absperrventil Shut off valve Expansionsventil Stufe 2 Expansion valve stage 2 Verdampfer Exchanger Fl ssigkeitsbad Liquid bath Warmetauscher Heat exchanger Fl ssigkeitsunterk hler Stufe 2 stage 2 Druckausgleichsbeh lter Kontrollventil Saugseite Stufe 2 Absperrventil Kontrollventil Druckseite Stufe 2 Warmetauscher Enthitzer Stufe 2 Olabscheider Absperrventil Schauglas Stufe 1 Schauglas Stufe 2 Verdichter Stufe 1 Ventilator Fan Verdichter Stufe
2. Regulation de vitesse UD 349 UD 349 L ftermotor motor moteur de ventilateur B1 Pt 100 F hler Pt 100 Probe Safety Pt 100 Sonde Circuit ETP 046 ETP 046 Sicherheitskreis circuit securit B2 Pt 100 F hler Regelung 100 Probe Controller Pt 100 Sonde R glage ETP 046 ETP 046 B3 Niveausensor Level sensor Niveau sensor EKS 034 034 B 4 F hler Drehzahlregelung Probe Speed control Sonde r gulation de US 041 US 041 vitesse C1 Motorkondensator Motor condenser Condensateur moteur 007 007 E 1 Heizk rper Heater Corps de chauffe EH 149 EH 149 F 1 Ubertemperaturschutz Overtemperature Protection de surpression Umwalzpumpe protection Circulating Pompe de circulation pump F2 Ubertemperaturschutz Overtemperature Protection de surpression Verdichter Stufe 1 protection Compresseur tage 1 compressor stage 1 F3 Uberdruckschalter Overpressure switch Disjoncteur de ES 035 ES 035 surpr ssion K 1 Anlaufrelais Starting relay Relais de demarrage M1 Pumpenmotor Pump motor Moteur de pompe EM 094 EM 094 M2 Verdichter Compressor Compresseur M3 Ventilator Fan Ventilateur 1 R1 Potentiometer Sollwert Setpoint potentiometer Potentiom tre valeur de UD 339 UD 339 consigne S1 Netzschalter Mains switch Interrupteur secteur EST 032 EST 082 X 1 Netzanschluss Mains connection
3. Mains Branchement secteur EKN 008 EKN 008 Netzkabel cable Cable de secteur X2 Anschlussbuchse Connection socket Douille de jonction EQD 037 EQD 037 R cklaufsicherung Reflow security valve Protection de EQZ 006 EQZ 006 refoulement C altpc WOBSER SPLiist SPL_neu RLxx RK_CS_KS doc 08 10 01 WDIBDIP FINDsI95 Suo xauuo2 sp Dugu s 93 03 8 Haus sesqon u un jsi nusg gane sp usi1ge rTu eu 103 JIM us 1Dusq gunuu2 s7 20888 QUA ss EF JOSS8 cuO3 48L1DUSSZISN JOSUBENDBAIN EEN qies Ag N LEERRER 3 33 au SD UA QA 4 EF Ta To fo J18 b435 20888 H JOA S l UD SQDB45 194 PUN BUNBII IDI1SIAJDA u23 132D2psnb S11D sun mx 0110151 UUSS QUS ANZ ih vex TEX gt C D Bun j8u2 nDI 204 1 1 m JOLDI LUBA J8u2snp euJpA 1 1 I7 on 11001 184 105 E la US UNS 1823 S1 9u28u2 1 on wn Bunz SH Ua 1DyasqJ oA usgunispug D1U591SSUNZINN B amp UuDRSnDSUO Xunj p INW Gerateliste Schaltplan RL6CS g ltig ab Serie A01 List of parts Circuit diagram RL 7 CS at serial no Liste de sch ma connexions partir 230V 50Hz 230V 60Hz Teil Nr Bezeichnung Designation D signation Bestell Nr Part No Ref No
4. 0 02 0 02 0 02 0 02 0 05 0 02 0 05 at 10 C in the bath Heater power max kW 2 2 2 12 12 Effective cooling capacity 20 C KW 10 3 0 3 0 3 0 46 0 46 with ethanol at 20 C 0 C 0 24 0 24 0 24 0 38 0 38 ambient temperature 30 C 0 1 0 1 01 0 30 0 30 40 C 0 27 0 27 50 C 0 25 0 25 60 C 0 23 0 24 70 C 0 17 0 19 80 C 0 05 0 11 Safety system adjustable overtemperature protection and low level protection to EN 61010 DIN 12879 class 2 Pump output against zero head Pressure Suction l min 20 16 20 16 20 16 20 16 22 max pump pressure bar 0 32 0 25 0 32 0 25 0 32 0 25 0 32 0 25 0 5 Pump connections M 16x1 M 16x1 M 16x1 M 16x1 M 16x1 nipples O13 nipples 213 nipples O13 nipples O13 nipples 013 Filling volume max L 4 6 10 14 19 27 4 6 4 6 Bath opening B x T mm 150x130 300x175 300x350 120x105 120x105 Bath depth mm 160 160 200 190 190 Usable liquid depth mm 140 140 180 150 150 Height to top of bath mm 450 450 575 540 540 Overall size W xD mm 280x375 550x735 375x590 495x615 495x615 H 650 650 775 740 740 Weight Kg 35 42 54 98 98 Supply V Hz 230 50 230 50 230 50 230 50 230 50 60 230 60 230 60 230 60 230 60 Protection class 1 nach VDE 106 Loading max kW 24 2 5 2 5 2 5 2 5 without accessories Current take up max A 15 15 15 16 16 with accessories Nominal curren
5. He a al a en ai erent 22 4 4 4 Fume extracti n P eat rm ar is hice pened era tar a act nantes 22 44 5 Steamiprogductions st ht 22 5 Bath liquids and hose connections se 23 5 1 E gl EE 23 5 2 OSO COMMONS t n dd mn 24 6 Unpacking assembly and setting up sise 26 61 Unp cking ri an ee eed de 26 6 2 Setting up operation as bath 26 7 Connection of external systems sienne 27 GA Closed extermaliruits EE 27 4 2 Open systems baths ein edd dada 27 8 Sting UD HM 30 8 12 asec tre C tt eo eie tatu e pc RD Lm 30 8 2 GConnectlon to s pply 5 neo ceteros dde ie etc uec 30 9 9 Basic functions ER al 30 50 14 03 02 x 3 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 8 4 Ext rnal Control US 32 8 5 Operation with programmer sise 32 8 6 Safety iei E 33 9 Maintenance ss er re 34 9 1 Safety notes in case of repairs iii 34 9 2 EN 34 9 3 Maintenance of the refrigeration system 34 94 Cleaning cdi ds 35 9 5 imita dl ada die 35 Appendix Accessories Circuit diagrams YACE0050 14 03 02 4 LAUDA Low temperatur
6. RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS Cooling diagram Bath liquid Ethanol Refrigerant Time for diagram water Glycol 1 1 x1 7 to 25 C 50 14 03 02 17 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 3 7 Multifunction connector 15 pin connector 23 S on the back with multiple function Use screened connecting cables Connect screen to plug case Cover connectors not in use with protective caps Pin 1 bath temperature recorder connection correct sign 10 mV K Ri 4100 Ohm internal recorder resistance gt 1 MOhm OV pin 3 Pin 2 Pt 100 EXT 4 wire current path Pin 3 OV reference potential for measurement signals rh Pin 4 programme or external setpoint input 10 mV K added to the selected setpoint The sum of both setpoints is displayed on pressing key y Ri 20 kOhm OV pin 3 Pin 5 output signal only for accessory units OV pin 12 Pin 6 setpoint output 10 mV C Ri 100 Ohm Load resistance 2 10 kOhm OV pin 3 Pin 7 12 V supply voltage max additional loading 20 mA Pin 8 reference voltage approx 5 V load resistance gt 10 OV pin 3 Pin 9 Pt 100 EXT 4 wire voltage path Pin 10 12 V supply voltage max additional loading 20 mA OV pin 12 Pin 11 Pt 100 EXT 4 wire current path Pin 12 OV load reference potential rh Pin 13 18 V if red fault lamp i
7. and clamp fitting for 4 mm dia Pt 100 probe 50 14 03 02 5 27 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS Fitting the level controller Ref No LPZ 901 The level controlleris mounted on the external bath using the screw clamp The mounting is suitable for both round and rectangular baths Height adjustment after loosening the screw Make sure that there is good circulation and that the float can move freely Make the hose connections to the thermostat connect the pressure nipple to the pressure side and the suction nipple to the suction side see diagram Clamp fitting for Pt 100 probe 4 mm dia The clamp is not required on these units YACE0050 23 04 02 E 28 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS It is advisable to set up the external bath at the same level If the difference in level between the open external bath and the thermostat bath is greater than 0 5 m there is the possibility in certain applications that the control range of the level controller is not sufficient With higher external bath level the suction hose should then be clamped off to such an extent that a constant level in the bath is obtained at which the float is within its control range If the external level is low the pressure hose has to be similarly restricted by partly clamping
8. connections Remove the screw caps and link the pump connections together using a piece of tubing As a permanent arrangement the hose link of flexible insulated metal tubing Cat No LZM 045 is the best and safest solution NOTE When loosening or tightening the screw caps 19 mm a f hold the threaded nipple on the tubing connections with a spanner 14 mm a f 2717 CW YACE0050 14 03 02 26 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 7 Connection of external systems 7 1 Closed external circuits Remove the closing plugs by releasing the threaded rings 19 mm a f from the outflow and return connections and replace them by the tubing nipples 13 mm dia supplied If the thermostat is connected to closed external circuits additional liquid must be poured in after the thermostat is switched on until the level in the bath remains at the correct height approx 2 cm below top plate At higher operating temperatures it is necessary to allow during filling for the expected expansion in volume of approx 8 per 100 C For suitable tubing materials see Section 5 We recommend metal tubings for temperatures above 100 C With external systems at a high level it may happen even in closed circuits that the external volume drains down and the thermostat tank overflows if the pump is stopped and air enters the t
9. 1 Compressor stage 1 Compresseur tage 1 M3 Ventilator Fan Ventilateur M4 Verdichter Stufe 2 Compressor stage 2 Compresseur tage 2 R 1 Potentiometer Sollwert Setpoint potentiometer Potentiom tre valeur de UD 339 consigne S 1 Netzschalter Mains switch Interrupteur secteur EST 082 X 1 Netzanschluss Mains connection Mains Branchement secteur EKN 008 Netzkabel cable C ble de secteur X2 Anschlussbuchse Connection socket Douille de jonction EQD 037 Rucklaufsicherung Reflow security valve Protection de EQZ 006 refoulement C altpc WOBSER SPLiist SPL_neu Kt_therm RL7CS doc 29 01 02 BESTATIGUNG CONFIRMATION CONFIRMATION LAUDR To A LAUDA Dr R Wobser LAUDA Service Center Fax 49 0 9343 503 222 Von From De Firma Company Entreprise StraBe Street Rue Ort City Ville Tel Fax Betreiber Responsible person Personne responsable Hiermit bestatigen wir daB nachfolgend aufgef hrtes LAUDA Ger t Daten vom Typenschild We herewith confirm that the following LAUDA equipment see label Par la pr sente nous confirmons que l appareil LAUDA voir plaque signal tique Typ Type Type mit folgendem Medium betrieben wurde was used with the below mentioned media a t utilis avec le liquide suivant Dar ber hinaus best tigen wir da das oben aufgef hrte Ger t sorgf ltig gereinigt wurde die Anschl ss
10. 2 Magnetventil Druckausgleich Condenser stage 1 Receiver Filter drier Expansion valve stage 1 Control valve pressure stage 1 Surge vessel Shut off valve Control valve pressure stage 2 Heat exchanger Heat remover stage 2 Oil separator Shut off valve Sight glass stage 1 Sight glass stage 2 Compressor stage 1 Compressor stage 2 Solenoid valve pressure compensation YACE0050 14 03 02 Overpressure switch stage 1 Overpressure switch stage 2 Liquid separator Control valve suction stage 1 Liquid refrigerant pre cooler Control valve suction stage 2 KA 1 Disjoncteur de surpression tage 1 Disjoncteur de surpression tage 2 Separateur de liquide Vanne de contr le aspiration tage 1 Condensateur tage 1 Receveur D shydrateur Vanne d expansion tage 1 Vanne de contr le pression tage 1 Echangeur thermique Echangeur tage 1 Condensateur tage 2 Vanne d arret Vanne d expansion tage 2 Echangeur Bain de liquide Echangeur thermique Surrefroidisseur Liquide r frig rant tage 2 R servoir d galisation de pression Vanne de contr le aspiration tage 2 Vanne d arret Vanne de contr le pression tage 2 Echangeur thermique Extracteur de chaleur tage 2 Separateur d huile Vanne d arret Voyant tage 1 Voyant tage 2 Compresseur tage 1 Ventilateur Compresseur tage 2 Vanne solenoide compensation de pression LAUDA Low temperature thermostats RC 6 CS
11. Anzeige Indication Affichage B 1 Pt 100 F hler Pt 100 Probe Safety Pt 100 Sonde Circuit ETP 046 Sicherheitskreis circuit securit US 060 B2 Pt 100 F hler Regelung Pt 100 Probe Controller Pt 100 Sonde R glage ETP 046 US 060 B3 Niveausensor Level sensor Niveau sensor EKS 034 C 1 Motorkondensator Motor condenser Condensateur moteur ECA 010 E 1 Heizk rper Heater Corps de chauffe EH 153 1 Ubertemperaturschutz Overtemperature Protection de surpression Umwalzpumpe protection Circulating Pompe de circulation pump F2 Ubertemperaturschutz Overtemperature Protection de surpression Verdichter protection compressor Compresseur F3 Uberdruckschalter Overpressure switch Disjoncteur de ES 035 surpr ssion M 1 Pumpenmotor Pump motor Moteur de pompe EM 099 M2 Verdichter Compressor Compresseur EMV 001 M3 Ventilator Fan Ventilateur EML 011 R 1 Potentiometer Sollwert Setpoint potentiometer Potentiom tre valeur de UD 339 consigne S 1 Netzschalter Mains switch Interrupteur secteur EST 085 X 1 Netzanschluss Mains connection Mains Branchement secteur EKN 007 Netzkabel cable C ble de secteur X2 Anschlussbuchse Connection socket Douille de jonction EQD 037 Rucklaufsicherung Reflow security valve Protection de EQZ 006 refoulement C altpc WOBSER SPLiist SPL_neu kKt_therm RC_CS_1 doc 16 10 01 x REFERENT n w gt ufo J01DI LUDA 40888 10u03 4
12. RL 7 CS RK 8 CS RK 8 KS RK 20 KS 5 Bath liquids and hose connections The operating temperature ranges specified for the bath liquids and the tubings are for general information only and may be restricted through the operating temperature range or safety requirements specified in the appropriate standards see Item 4 2 Working Chemical i Viscosity Ref No Designation tem Designation i kin at Quantity perature i Temperature range Former from C at 20 C mm s mm s 51 101 201 designation to C Water 5 90 deionised water D Kryo 20 160 _ 20 180 28 at 20 C gt 230 178116 LZB 216 LZB 316 Kryo 30 G 100 9 18 4 50 at 25 C LZB 109 LZB 209 LZB 309 ethylene glycol water Kryo 85 Ultra 85 30 Silicone oil 1 76 17 at 80 C gt 56 LZB 113 LZB 213 LZB 313 Therm XLT Ultra 350 330 SCB 30 200 synthetic 28 bei 30 C gt 240 LZB 107 LZB 207 LZB 307 thermal oil Ultra 300 Ultra 80 300 Silicone oil 80 gt 400 LZB 108 LZB 208 LZB 308 Therm SW 300N O At higher temperatures gt Evaporation losses gt Use bath covers gt Section 10 Accessories gt Distilled water or fully deionised water must only be used with the addition of 0 19 sodium carbonate Na2CO3 water otherwise gt danger of corrosion Water content falls after prolonged operation at higher temperatures gt mixture becomes flammable flash point 128 C gt Check the mixture r
13. it off WARNING If thermostat and external bath are not at the same level it is essential to provide venting of the connecting hoses when the pump is swiched off in order to prevent overflowing It is preferable to use the Non Return Fitting see Accessories which is mounted at the highest point of hose connection bath or thermostat connection and which is linked electrically to the mains output 34 H Non Return Fitting Ref No UD 125 Always protect tubing with hose clips against slipping off or use stainless steel hoses with screwed connections NOTE When tightening the screw caps 19 mm a f at the tubing connections hold the threaded nipple with a spanner 14 mm a f 50 14 03 02 29 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 8 8 1 8 2 8 3 Starting up Filling Fill the unit with bath liquid to suit the operating temperature see Section 5 The filling volume is given under Technical data In general the thermostat must be filled no higher than 2 cm below the cover plate When working with thermal oils e g Ultra Therm 330 SCB slightly less liquid should be used to allow for expansion The level must obviously not fall below the minimum otherwise the low level protection swiches off the unit see Safety circuit The same applies to filling an external system by the pump during start up Connection to supply Connect the unit o
14. proportional band of 0 4 16 C referred to the heater control signal The standard setting at which the unit is shipped from the factory is 3 Usually it is not necessary to change the adjustment The scale is non linear with the following values Xp P Bereich 1 0 4 C 2 1 5 C 3 2 5 C 4 4 5 C 5 16 0 C 50 14 03 02 m 31 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS If there are any control oscilliations e g in small baths with bath liquids of low thermal capacity and high viscosity Xp is set to the next higher setting e g from 2 to 3 8 4 External control Connect the Pt 100 resistance thermometer to socket 10 S see Item 3 5 Switch over the display by pressing the key Ext The temperature display flashes if no external Pt 100 is connected Pt 100 Using the potentiometer Pt 100 FON on the back of the control unit the external Pt 100 can be trimmed to a known temperature This can be done using the bath temperature for example if no other temperature reference is available When used with external control i e the measurement point for the control parameter is located outside the thermostat at a point selected by the user the potentiometer EXT can be used to select value between approx 50 and 90 for the proportion of the external probe The closer the external Pt 100 probe is connected with the circulated bath liqui
15. safety spacing of only 5 K to the flashpoint In each case it is assumed that there is correct adjustment and regular testing see Item 8 6 of overtemperature and low level protection 4 3 Important notes The user is only protected against those hazards which are caused by exceeding the temperature and by low liquid level Further hazards may arise from the type of product being thermostated e g a shift above or below certain temperature levels or fracture of the container and a reaction with the thermostatic liquid etc 50 14 03 02 21 LAUDA Low temperature thermostats RC 6 CS RC 20 CS 25 CS RL 6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 4 4 4 4 1 4 4 2 4 4 3 4 4 4 4 4 5 Values for temperature variation and indication accuracy apply under normal conditions according to DIN 58966 In special cases high frequency electromagnetic fields may lead to less favourable values There is no loss of safety Units are in accordance with EMC directive EN 61326 1 class A Units are only suitable for use in industrial areas as disturbing voltage fluctuations might occur Warning The units must only be used according to the descriptions indicated in the Operating Instructions This includes operation by properly qualified and instructed personnel The units are not designed for operation under medical conditions according to EN 60601 1 or IEC 601 1 Warning notes AN Temperatures Parts of the bath co
16. 00 70 stainless steel protection tube 4 mm dia Temp range 200 300 C 50 response time 1 5 sec Overall length approx 290 mm 4 wire circuit Cat No ETP 009 Fig 3 Pt 100 92 stainless steel protection tube 4 mm dia with attached Silicone cable 2 m long and plug Temp range 100 200 C 50 response time 3 sec Overall length approx 250 mm 4 wire circuit Cat No ETP 051 Fig 4 YACE0050 14 03 02 gt 38 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS Connecting cable with 4 pin plug for external control on all C and K units and for digital thermometer for Pt 100 44 and Pt 100 66 1 5m Cat No UK 048 length as specified Cat No UK 213 Pt 100 42 Pt 100 70 Pt 100 90 1 5m Cat No UK 047 length as specified Cat No UK 212 Screw clamp fitting stainless steel with Teflon pressure ring for Pt 100 resistance thermometer 4 mm dia Cat No HX 078 Fig 5 50 14 03 02 D 39 n LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS Fig 2 Fig 4 NS 14 29 DIN 122 42 Pt 100 42 Pt 100 44 300 Pt 100 66 1410 32 YACE0050 14 03 02 40 WD JBD p gt x5BuuoD Dx 03 A0 uD 150425 gang 21125 qD JP u2 1ge 1u2s amp u 12
17. 0888 10u03 WDIBDIP FINDs19 Suo xeuuo2 10 5 sDo4g Det z Bun 41849 DA 09 0 gan AAA bi 4 29152152 911915111 4455 095 202 ms LEX Lu BUDBSNDSUOI JAUN I N x 11 rex D N 191 in eE CIE JOSUSSNDSAIN 1109 2041105 Mae 990 1825 8118 4 94315 DIN wis n oo Us 1DysqJoA usemunijsepug SUSSIUUDS u2 1g9 1u su 9 811 J UD 9eqbpEJei 9M PUN BUNBI 11511815 48 9 JIM usj Dueq Bunuys az 203 u21132p4pegnbp 211D sun US UND A ab 42 166UNZ NN Gerateliste Schaltplan RK 8 KS g ltig ab Serie VO1 List of parts Circuit diagram RK 20 KS at serial no Liste de sch ma connexions RK 8 CS partir 230V 50Hz 230V 60Hz Teil Nr Bezeichnung Designation D signation Best Nr Best Nr Part No Ref No Ref No Pi ce no No Ref No Ref RK8KS RK8CS RK 20 KS A1 Leiterplatte Printed circuit board Circuit imprim UL 432 3 UL 432 3 Netz Mains Secteur A2 Leiterplatte Printed circuit board Circuit imprim UL 430 2 UL 430 2 Anzeige Indication Affichage A3 Leiterplatte Printed circuit board Circuit imprim UL 473 UL 473 Drehzalregelung Speed control ventilator
18. 3 JIM usijDusq Eunuys sz ule bes 020 JB JDUDSZIeN JOSUSSNDSAIN murussbubLIDx 29115455 JOA SIIIAD UD pun SUNEI ID ISIAISA u511325mopgnbp 3115 sun Cm 10888 Jauoy JO DI LUBA 222 D pem sem 1 o caxm lt SC ml 2 40888 Aa 2 st 3 MP 2 a a 37 e 3 8119 5 1 425 0 5 s nz pec un a MD 320 vx rj 5 D H 3 m m ta ear ta In a 8 853 J 18 spreueuss n 1 I 2 I I aN 1 33 1 ud lt 1 I Bunz 1 5 5 a a J BUDBSNDSUO AUM Gerateliste Schaltplan RC6CS g ltig ab Serie VO1 List of parts Circuit diagram RC 20 CS at serial no Liste de sch ma connexions RC 25 CS partir 230V 50Hz 230V 60Hz Teil Nr Bezeichnung Designation D signation Best Nr Part No Ref No Pi ce no No Ref 1 Leiterplatte Printed circuit board Circuit imprim UL 429 3 Netz Mains Secteur A2 Leiterplatte Printed circuit board Circuit imprime UL 430 2 Anzeige Indication Affichage B 1 Pt 100 F hler Pt 100 Probe Safety Pt 100 Sonde Circuit ETP 046 Sicherheitskreis circuit securit B2 Pt 100 F hler Regelung Pt 100 Probe Controller Pt 100 Sonde R glage ETP 046 B3 Niveausensor Level sensor Niveau sensor EKS 034 C 1 Motorkondensator Motor condenser Condensateur moteur ECA 012 E 1 Heizk r
19. 5 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS mains switch green ON green lamp lights up Cooling switch yellow Es ON With thermostats Series RL the green LED shows the operation of the low temperature stage Depending on the application the low temperature stage starts running after a period of approx 10 s to 20 min after the starting of the refrigeration unit Briefly press the left key Int The bath temperature is indicated When the red signal 4 lamp lights up briefly press the reset key US Using the keys Int and the display can be switched to bath temperature Int or the temperature of the external Pt 100 Ext irrespective of the control mode selected INT EXT The indication is on the green signal lamps Int and Ext At the same time the display indicates the setpoint when pressing one of the two keys y To adjust the setpoint press one of the keys release the locking device on the setpoint knob and select the setpoint according to the display Lock the knob again release the key The lamp shows the operation of the heater At the control point this lamp flashes according to the heater power or the lamp according to the cooling output After the operating temperature has been lowered the lamp n obviously starts to flash only after the set temperature has been reached on Types RC and RL The controller gain Xp can be adjusted on the back of the control unit The adjustment range 1 5 corresponds to a
20. LAUDA Operating instructions LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS LAUDA DR R WOBSER GMBH amp CO KG P O Box 1251 D 97912 Lauda K nigshofen Phone 49 0 9343 503 0 from serie A 01 Fax 49 0 9343 503 222 01 02 E mail info lauda de YACE 0050 Internet http www lauda de LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS T Brief operating instructions arase ane e o im medie nd eias 5 2 Technical Data to DIN 58966 sienne 7 3 General construction and technical description ss 11 3 1 Operatind principlO e A n eit etit 11 9 2 Material a attt tet A A A 11 Gi eue 11 34 Me 12 3 5 Extemal controller uz iis Mee s ue E in 13 3 6 Refrig ration system eme ceti ou ei uber uode a 13 3 7 Multif nctlon cCOnfectors io aoi det eco tta ce eec tei e contatto c ta e 18 3 8 Mains supply output 34 H a an aaa neh 19 3 9 Remote operation FBC Option sisi 19 3 10 SAD connection to NE 28 Option nnne 19 4 Safety devices and warning notes sin 21 4 1 A nr ai Dis Selen 21 4 2 Why can a thermostat be dangerous iii 21 4 9 Importatit notes era E Eee en Helen e 21 44 Warning notes A EE DE 22 4 4 1 Temperatures 22 4 4 2 Mains CONMECKION E 22 4 4 3 Mains Cable
21. Pi ce no No Ref A 1 Leiterplatte Printed circuit board Circuit imprim UL 432 3 Netz Mains Secteur A2 Leiterplatte Printed circuit board Circuit imprim UL 430 2 Anzeige Indication Affichage B 1 Pt 100 F hler Pt 100 Probe Safety Pt 100 Sonde Circuit ETP 047 Sicherheitskreis circuit securit B2 Pt 100 F hler Regelung Pt 100 Probe Controller Pt 100 Sonde R glage ETP 047 B3 Niveausensor Level sensor Niveau sensor EKS 034 B4 F hler KTY 81 Probe KTY 81 Sonde KTY 81 ETP 027 C 1 Motorkondensator Motor condenser Condensateur moteur ECA 012 E 1 Heizk rper Heater Corps de chauffe EH 163 E3 Heizband Heater band Ruban de chauffe UD 387 1 Ubertemperaturschutz Overtemperature Protection de surpression Umwalzpumpe protection Circulating Pompe de circulation pump F2 Uberdruckschalter Overpressure switch Disjoncteur de ES 048 Stufe 1 stage 1 surpr ssion tage 1 Ubertemperaturschutz Overtemperature Protection de surpression Verdichter Stufe 1 protection Compresseur tage 1 compressor stage 1 F4 Uberdruckschalter Overpressure switch Disjoncteur de ES 048 Stufe 2 stage 2 surpr ssion tage 2 F5 Ubertemperaturschutz Overtemperature Protection de surpression Verdichter Stufe 2 protection Compresseur tage 2 Compressor stage 2 K 11 Anlaufrelais M 2 Starting relay M 2 Relais de demarrage 2 M 1 Pumpenmotor Pump motor Moteur de pompe EM 062 M2 Verdichter Stufe
22. Silicone rubber never use Silicone oil with Silicone tubing Protect tubing with hose clips against slipping off Metal hoses Tube i mm Va mm Temperature Length single layer connection range C insulation MC 50 M 16x1 10 400 LZM 040 MC 100 M 16x1 T 6 10 400 T LZM 041 MC 150 M 16x1 10 18 10 400 150 LZM 042 MC 200 M 16x1 10 18 10 400 ES LZM 043 Pump link M 16x1 10 400 LZM 044 Bic Pa la Tee with insulation connection range C MK 50 M 16x1 90 150 LZM 052 MK 100 M 16x1 T n 90 150 T LZM 053 MK 150 M 16x1 10 44 90 150 150 LZM 054 MK 200 M 16x1 10 44 90 150 200 LZM 055 Pump link M 16x1 10 44 90 150 20 LZM 045 YACE0050 21 06 02 24 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS Metal hoses Tube Q i mm O a mm Temperature Length with Insulation connection range C M 19x1 5 90 150 100 M 19x1 5 e 90 150 100 LZM 057 MGK 150 M 19x1 5 12 36 90 150 150 LZM 058 MGK 200 M 19x1 5 12 36 90 150 200 LZM 059 with triple connection range C insualtion MC 50S M 16x1 60 350 LZM 046 MC 100 S M 16x1 A 60 350 17 LZM 047 150 5 16 1 10 34 60 350 150 LZM 048 MC 200 S M 16x1 10 34 60 350 200 LZM 049 Further details on thermostatic liquids and h
23. alified electrician All necessary components except for the connection cables are supplied as part of the kit Please specify the length of the connection cables Conversion kit for remote operation FBC Cat No LCZ 960 Set of cables for remote operation FBC 5 m long Cat No UK 235 Set of cables for remote operation FBC length as specified Cat No UK 238 19 adapter to take the control panel of the remote operation system FBC 5 HE for one or two panels Cat No LRZ 009 3 10 SAD connection to NE 28 Option The connector according to NAMUR recommendation NE 28 is located at the back of the control unit if option SAD is fitted Use screened connecting cables Connect screen to plug case Cover connectors not in use with protective caps 85 Pt 100 connection EXT Lemosa plu 1 Pt 100 EXT I 2 Pt 100 EXT U 3 Pt 100 EXT U 4 Pt 100 EXT I 4 pin plug for Pt 100 conne Cat No EQS 022 Note only one of the Pt 100 inputs socket 10 S or 8 S may be used at a time 50 14 03 02 19 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 54 5 signal connection 1 external temperature 0 10 V 0 V 100 C 10 V 400 C 2 internal temperature 0 10 V 0 V 100 C 10 V 400 C 3 earth of measurement signals pin 1 2 5 4 control signal 4 20 mA 4 mA 100 C 20 mA 400 C at 0 C setpoint setting 5 control sig
24. atio with a densitometer When selecting bath liquids it should be noted that performance must be expected to worsen at the lower limit of the operating temperature range due to increasing viscosity The full operating range should only be utilised if really necessary The operating ranges of the bath liquids and tubing represent general data which may be limited by the operating temperature range of the unit Silicone oil causes pronounced swelling of Silicone rubber gt never use Silicone oil with Silicone tubing DIN Safety data sheets are available on request 50 14 03 02 E 23 LAUDA Low temperature thermostats RC 6 CS RC 20 CS 25 CS RL 6 CS RL 7 CS 8 CS RK 8 KS RK 20 KS 5 2 Hose connections Tubing type Int dia Temperature Application mm range C EPDM tubing a for all bath RKJ 111 uninsulated liquids except Ultra 350 and mineral oils EPDM tubing E for all bath LZS 019 insulated liquids except Ultra 350 and mineral oils EPDM tubing for all bath RKJ 112 uninsulated liquids except Ultra 350 and mineral oils EPDM tubing for all bath LZS 021 insulated m du liquids 35mm approx except Ultra 350 and mineral oils Silicone tubing 11 30 100 water RKJ 059 uninsulated water glycol mixture Silicone tubing 60 100 water LZS 007 insulated m water glycol 35mm approx mixture EPDM tube not for Ultra 350 and mineral oils Silicone oil causes pronounced swelling of
25. ction pump Non return fitting for automatic venting of the connecting hoses when thermostating an open external bath Nipples for pump connections 13 mm dia 10 mm int dia 11 mm dia 7 mm int dia Equipment trolley for all compact bench thermostats RM 20 RC RK and RL movable stepless height adjustment cover plate of the units can be adjusted to height of laboratory bench 50 14 03 02 5 37 Cat No LCZ 011 Cat No LCZ 058 Cat No LPZ 901 Cat UD 125 Cat No HKO 026 Cat No HKO 025 Cat No LCZ 036 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS LAUDA Pt 100 platinum resistance thermometers to DIN IEC 751 Class A for external control and other temperature measurement Pt 100 42 Pt 100 42 all glass version with NS 14 23 ground taper DIN 12242 Temp range 100 300 C 50 response time 0 8 sec Overall length approx 115 mm 4 wire circuit Cat No ETP 049 Fig 1 Pt 100 44 all glass version with NS 14 23 ground taper DIN 12242 Temp range 100 300 C 50 response time 0 8 sec Overall length approx 320 mm Cat No ETP 007 Fig 2 Pt 100 66 as Pt 100 44 Overall length approx 430 mm Cat No ETP 008 Fig 2 Pt 100 90 stainless steel protection tube 4 mm dia Temp range 100 300 C 50 response time 1 5 sec Overall length approx 120 mm 4 wire circuit Cat No ETP 050 Fig 3 Pt 1
26. d the higher the external proportion e g 90 can be chosen This increases the quality of the control results related to the external measuring points Suggested setting for a 2 litre jacketed reactor with water glycol external resistance thermometer in the product space product slightly stirred EXT a 90 96 Xp 2 With the selected simple control method there remains a permanent deviation between external controlled temperature and setpoint depending on the proportion of the external measurement parameter this deviation has to be compensated by re adjusting the setpoint Example selected potentiometer EXT 0 80 setpoint 80 C After the system has settled down the external measured temperature is 79 5 C Increase the setpoint by 0 5 K then the external measured temperature rises to 80 C 8 5 Operation with programmer A programmer Type PM 351 1 can be connected to the multifunction connector 23 S to vary the setpoint of the thermostat according to a given programme This requires that the energy balance heating cooling load of the thermostat matches the requirements of the programme heating rate cooling rate operating temperatures The plug must not be put into 23 S when adjusting the unit setpoint to the lowest temperature of the programme This value is entered as value A when programming the programmer Do not change the unit setpoint any more and put in the plug of the programmer connecting cable Operation of the p
27. e switch off function of the safety circuit remains stored during a break in the supply or after switching off the supply 4 Reset is possible only after rectifying the fault using the reset key The safety devices are conform to 61010 2 010 The pump motor is fitted with a temperature monitor which switches off if the motor winding overheats The heater is also switched off simultaneously After the motor winding has cooled down the pump starts up automatically 4 2 Why can a thermostat be dangerous Thermostats are equipped with heaters which supply the necessary heat to the thermostating liquid If the temperature control fails or if the liquid level is too low the heater may reach temperatures which can lead to a fire in the laboratory especially in combination with flammable liquids When using the thermostat as a circulation thermostat a hose may break causing hot liquid to spill and endangering people and goods The safety requirements on thermostats therefore depend on whether non flammable or flammable liquids are used operation is with or without supervision The thermostats described in these Operating Instructions are protected against overtemperature and low liquid level if used according to the descriptions indicated in these Operating Instructions The units can be operated with non flammable bath liquids and with flammable bath liquids up to 25 K below their flashpoint EN 61010 while DIN 12879 requires a
28. e thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 1 Brief operating instructions 4 Even if you find these brief instructions initially sufficient please read the following sections especially Section 4 Safety devices and warning notes For safe operation of the equipment it is essential that the information in these Operating Instructions is observed Check thermostat and accessories during unpacking for any transport damage and if necessary inform the carrier or the postal authority Assemble the unit according to Section 6 and add extra items as appropriate Fitting the tubing to the pump connections Without external system for improved circulation within the bath remove the closing plugs from the two pump connections fit the tubing nipples and link them together with e g Perbunan tubing up to 120 C or better a metal tubing Mit With external system make tubing connections to the external system Protect tubing with hose clips against slipping off Use only softened water or LAUDA bath liquids Section 5 Fill the bath up to a level about 2 cm below the cover plate Check the supply voltage against the details on the label Insert the mains plug Set the potentiometer EXT 0 fully anticlockwise to INT RK Types RK switch on the unit with the mains switch green lamp lights up Types RC and RL Working without refrigeration operating temperatures above approx 40 C Mai
29. e verschlossen sind und sich weder giftige aggressive radioaktive noch andere gef hrliche Medien in dem Ger t befinden Additionally we confirm that the above mentioned equipment has been cleaned that all connectors are closed and that there are no poisonous aggressive radioactive or other dangerous media inside the equipment D autre part nous confirmons que l appareil mentionn ci dessus a t nettoy correctement que les tubulures sont ferm es et qu il n y a aucun produit toxique agressif radioactif ou autre produit nocif ou dangeureux dans la cuve Stempel Datum Betreiber Seal Cachet Date Date Responsible person Personne responsable Formblatt Form Formulaire Unbedenk doc LAUDA DR R WOBSER GmbH amp Co KG Erstellt published tabli LSC PfarrstraBe 41 43 Tel 49 0 9343 503 0 And Stand config level Version 0 1 D 97922 Lauda K nigshofen Fax 49 0 9343 503 222 Datum date 30 10 1998 Internet http www lauda de E mail info lauda de UNBEDENK DOC
30. ections socket 10 S Pt 100 Pin 1 current path Pt 100 Pin 2 U voltage path Pin 3 current path Pin 4 U voltage path 4 pin plug for Pt 100 connection Cat No EQS 014 Use screened connecting cables Connect screen to plug case Cover connectors not in use with protective caps 3 6 Refrigeration system The refrigeration system consists essentially of a hermetically sealed compressor The condensation and motor heat is dissipated through a fan cooled finned tube condenser Fresh air is drawn in at the front heated and discharged at the back and the sides To ensure problem free air circulation the ventilation openings must not be restricted The compressors are fitted with a temperature monitor which responds to the compressor temperature and its current take up The cooling system is additionally protected against excessive pressure by a pressure monitor RC units For working temperatures below approx 40 C the refrigeration system is running continuously and removes a certain amount of heat from the bath the heater operates against this with the heating power which is automatically adjusted by the control circuit RL units Thermostats Series RL work with continuous heating similar to RC units Their refrigeration unit consists of a two circuit cascade with electronic starting control of the low temperature stage RK units The more powerful refrigeration unit is operated by the automatic electronic compressor co
31. ent power supplies have different heating capacities as well as different values for power consumption see type lable siehe 4 3 Technical changes reserved YACE0050 14 03 02 8 5 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS LED Display LED Display Indication LED edition 2000 Temperatureinstellung Temperature adjustment Ajsutage de t mperature Taster Display Umschaltung Key Shift display and Setpoint Touche Commutation d affichage et Valeur de consigne Kontrollleuchte St rung Pilot lamp Fault Lamp Perturbation Externreglereinstellung Adjustment of external controller Ajustage du r gulateu Arretierung Locking device Arr tage Kontrollleuchte K hlung nur bei Option MVC Pilot lamp Cooling only at option MVC Lampe t moin R froidissement uniquement en cas d option MVC Netzschalter Mains switch externe Interrrupteur g n ral Kontrollleuchte Taster Entsperren Push button Reset Touche R armement Buchse f r ext Pt 100 Heizung Pilot lamp Heating Lampe t moin Chauffage bertemperatureinstellung Overtemperature adjustment Ajustage de surt mperature Steckverbindung f r Schnittstelle SAD OPTION Plug connector for interface analog dig
32. fuse 5 x 20 F4A is located in the control unit This is accessible after removing the cover When the fuse has blown the green lamp in the mains switch does not light up Maintenance of the refrigeration system The refrigeration system operates largely without maintenance If the unit is being operated in a dusty atmosphere we recommend cleaning the refrigeration system condenser at intervals of 4 to 6 months This is best done with compressed air or nitrogen by blowing for a few minutes into the ventilation openings If necessary unscrew the front grille YACE0050 19 04 02 34 LAUDA Low temperature thermostats RC 6 CS RC 20 CS 25 CS RL 6 CS RL 7 CS 8 CS RK 8 KS RK 20 KS 9 4 9 5 Repair and disposal note The cooling circuit of the types RC is filled with the CFC free refrigerant R 404 A HP 62 the cooling circuit of the types RK is filled with the mixture of refrigerants HP 80 The high temperature stage of the RL units is filled with CFC free refrigerant R 404 A their low temperature stage is filled with CFC free refrigerant R 23 Repair and disposal only by a qualified refrigeration engineer Cleaning The unit can be cleaned using a cloth moistened with water with the addition of a few drops of domestic detergent No water must find its way into the control unit The user is responsible for any necessary decontamination if dangerous materials have been spilled on or inside the unit This applies in par
33. hermostated system Always ensure the maximum possible flow area in the external circuit nipples tubing system This results in a larger flow and therefore improved thermostatic control Always protect tubing with hose clips against slipping off or use stainless steel hoses with screwed connections NOTE When loosening or tightening the screw caps 19 mm a f at the tubing connections hold the threaded nipple with a spanner 14 mm a f 7 2 Open systems baths The units except for RK 8 CS are equipped with a pressure suction pump This can be used for circulation to closed external circuits at higher pump outputs and in particular also to open external baths There are two possibilities for maintaining the level in external baths 1 The suction tubing is mounted in the external bath so that its end is at the required liquid level The flow of the pressure stage is restricted with a tubing clamp on the hose from the pressure connection to the external bath so that the flow of the pressure stage is restricted slightly below that of the suction stage This becomes noticeable by the entry of air into the suction tubing This operating method is not recommended in particular at temperatures below 0 C and when using oil at elevated temperatures 2 The preferred solution is the use of the LAUDA level controller Cat No LPZ 901 which provides the functions of adjustable level control with float srew on connetion for external bath
34. ital OPTION Connecteur pour jnterface analogue digit OPTION Abgleichpotentiometer Socket for external Pt 100 Douille pour sonde Pt 100 externe Netzspannungsausgang UN EX f r ext Pt 100 Trimming potentiometer for external Pt 100 Potentiom tre de tarage pour Pt 100 ext Einstellung Xp Mains supply output Sortie tension secteur 34H Adjustment Xp Ajustage Xp Multifunktionsanschluss 230V max 2A Pumpenstutzen Pump nozzles D Tubulures de pompe Multifunction connector Connecteur d entr e sorties 50 14 03 02 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS RC 25 CS RK 8 CS RK 8 KS RK 20 CS RC 25 CS RL6 CS YACE0050 14 03 02 1 0 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 3 3 1 3 2 3 3 General construction and technical description Operating principle The LAUDA bath circulation thermostats Series RC RL and RK with Electronics S differ in bath volume bath depth pu
35. mp type and output as well as in cooling capacity and working temperature range see also Item 3 6 Laboratory thermostats operate with liquids operating medium heat transfer fluid which serve for energy transfer to the product to be thermostated The thermostated products can be immersed in the thermostatic bath bath thermostat or placed in an external open bath whose liquid is circulated by the pump of the thermostat When operating as circulator the thermostatic liquid is pumped through an external heat exchanger arranged by the user in which the product is being thermostated jacketed vessels reactors heat exchangers Material All materials in contact with the bath liquid are made from high grade stainless steel or materials of similar anti corrosion properties Materials of PTFE and PETP are also used in the thermostats Series RL Pump All units except Type RK 8 CS are equipped with a centrifugal pressure suction pump This can be used to operate both external open baths and closed external systems reactors The immersion pumps are supplied in the two performance classes C and K The thermostat RK 8 CS is fitted with a pure pressure pump since this unit operates specially with external circulation The pumps are driven by external runner motors with a continuous shaft except for RL The pumps operate perfectly up to a viscosity of approx 70 mm s RK 8 CS approx 120 mm s with the pump output decreasing rapidly with increa
36. nal 10 mV C parallel to MF 23 S pin 4 6 earth of the control signal linked int to pin 3 6 pin mating plug Cat No EQS 057 Note of the three control signal programmer inputs 23 S pin 4 54 S pin 4 and 5 only one pin may be used at a time 12 N floating contact general fault 1 n o closing 2 common 3 n c opening 1 2 are closed under normal conditions 3 pin mating socket Cat No EQD 047 14 N contact input fault 1 n o closing 2 common 3 not used mating plug with link 1 2 is included in the unit 3 pin mating plug Cat No EQS 048 Interface SAD to NE 28 Cat No LCZ 959 factory fitted or retrofit kit YACE0050 14 03 02 E 20 be LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 4 Safety devices and warning notes 4 1 Safety functions The built in overtemperature limiter is adjustable with a tool screwdriver between 0 C and 150 C resp 100 C The bath temperature is sensed by a separate Pt 100 resistance thermometer and processed by a separate electronics When exceeding the set switching point the unit is switched off permanently on all poles limiter function The red signal lamp A lights up and at the multifunction connector 23 S a signal of approx 18 V appears at contact 13 A float switch with magnetic coupling acts as low level cut out and also switches off the unit pump and heater permanently on all poles Th
37. nly to an earthed socket PE Compare the details on the label with the mains voltage see Item 4 4 2 Model according to EMC directive EN 61326 1 industrial areas only When working without external system ensure that the pump connections are linked together metal hose link Cat No LZM 045 or use the closing plugs Basic functions Set potentiometer EXT 0 fully anticlockwise INT Set the potentiometer for the overtemperature switch off point to suit the required operating temperature with due consideration for the bath liquid When operating below ambient temperature the overtemperature cut out setting must of course be above ambient temperature until the operating temperature is reached Then the switch off point can be set slightly above the bath temperature at least approx 0 C Types RK Switch on the unit with the mains switch The green signal lamp lights up Depending on the temperature setting and the energy demand the refrigeration system switches on automatically The signal amp L indicates the cooling function Types RC and RL Working without refrigeration operating temperatures above approx 40 C mains switch green on I ON green lamp lights up Cooling switch yellow 0 OFF Working with refrigeration operating temperature below approx 40 C Notice only valid for EU countries YACE0050 14 03 02 y 30 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 2
38. ns switch green on ON green lamp lights up Cooling switch yellow Es on 0 OFF Working with refrigeration operating temperature below approx 40 C Mains switch green ON green lamp lights up Cooling switch yellow on ON When starting up the refrigeration unit after it has been off for a longer period it may take up to 20 min depending on ambient temperature and equipment type until the normal cooling performance is available Move the temperature setting to the required temperature Pressing the key shows the operating temperature setpoint on the display The A adjustment is made on the potentiometer A Release the locking device before moving this control Set the overtemperature protection at the control to some value above the setpoint When the red signal lamp lights up reset the system by pressing the reset 4 key 50 14 03 02 5 5 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS When connecting up an external system ensure that filling this system does not cause the level inside the thermostat to fall more than is permitted If the setpoint of the bath liquid is reached the yellow pilot lamp Heating starts to flash Having settled the digital thermometer displays the setpoint Operating safety The thermostat must be operated only with non flammable bath liquids or with flammable bath liquids up
39. ntrol The LAUDA proportional cooling system controls the cooling capacity through solenoid valves with sound insulation using the PID temperature controller This ensures minimum energy consumption and minimal environmental warming on fully automatic operation over the entire working temperature range with differing load conditions 50 14 03 02 13 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS Diagram cooling circuit RC berdruckschalter Trocker Kapillarrohr Verdampferschlange Flussigkeitsbad Verfl ssiger Verdichter Ventilator YACE0050 14 03 02 Overpressure switch Drier Capillary Evaporator coil Liquid bath Condenser Compressor Fan 14 Disjoncteur de surpression Secheur Tube capillaire Evaporateur serpentins Bain de liquide Condensateur Compresseur Ventilateur LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL 6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS RK Uberdruckschalter Verfl ssiger Sammelflasche Trocker Flussigkeitsabscheider Nachspritzventil Einspritzventil Flussigkeitsbad Verdampfer Verdichter Ventilator Magnetventil K hlen Magnetventil Hei gas 50 14 03 02 Overpressure switch Condenser Receiver Drier Liquid separator Re injection valve Injection valve Liquid bath Exchanger Compressor Fan Solenoid valve cooling Solenoid valve hot gaz 15
40. o 2 racks 13 for 56 tubes 10 13 dia 80 mm immersion Cat No UG 066 RD 18 1 for 33 tubes 14 18 dia 80 mm immersion Cat No UG 067 RD 18 2 for 33 tubes 14 18 dia 110 mm immersion Cat No UG 068 RD 30 for 14 tubes 24 30 dia 110 mm immersion Cat No UG 069 Bath RC 25 up to 4 racks Bath RK 20 up to 2 racks RE 13 for 56 tubes 10 13 dia 80 mm immersion Cat No UG 070 RE 18 1 for 33 tubes 14 18 dia 80 mm immersion Cat No UG 071 RE 18 2 for 33 tubes 14 18 dia 110 mm immersion Cat No UG 072 RE 30 for 14 tubes 24 30 dia 110 mm immersion Cat No UG 073 Bath RC 6 1 rack RF 18 1 for 20 tubes 14 18 dia 80 mm immersion Cat No UG 074 RF 18 2 for 20 tubes 14 18 dia 110 mm immersion Cat No UG 075 Bath RK 8 1 rack RG 18 1 for 20 tubes 14 18 dia 80 mm immersion Cat No UG 076 RK 18 2 for 20 tubes 14 18 dia 110 mm immersion Cat No UG 077 Details of other racks on request Rising platform for retrofitting size 250x160 mm with continuous height adjustment Cat No LCZ 012 suitable for Bath RC 20 1 platform Bath RC 25 2 platforms Bath RK 20 1 platform YACE0050 14 03 02 36 m LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS Gable cover stainless steel for RC 25 Gable cover stainless steel for RC 25 Beer forcing test for bottles of 0 5 Level controller for thermostating an open external bath using pressure su
41. ortion and adjustable Xp Temperature variation C 0 02 0 02 0 02 at 10 C in the bath Heater power max kW 2 2 2 Effective cooling 20 C KW 0 8 0 8 0 8 capacity with ethanol at 0 C 0 7 0 7 0 7 20 C ambient 30 C temperature 40 C 0 14 0 12 0 12 50 C 0 03 60 C 70 C 2225 ss 22 80 2L HE 5 Safety system adjustable overtemperature protection and low level protection to EN 61010 DIN 12879 class 2 Pump output against zero head Pressure Suction l min 20 24 18 24 18 max pump pressure bar 0 3 0 5 0 34 0 5 0 34 Pump connections M 16x1 nipples 13 M 16x1 nipples 13 M 16x1 nipples 213 Filling volume max L 5 5 8 5 5 8 11 18 Bath opening B xT mm 150x130 150x130 300x175 Bath depth mm 200 200 200 Usable liquid depth mm 180 180 180 Height to top of bath mm 575 575 575 Overall size WxD mm 400x500 400x500 400x500 H 775 775 775 Weight Kg 62 62 62 Supply V Hz 230 50 230 50 230 50 230 60 230 60 230 60 Protection class 1 nach VDE 106 Loading max kW 2 7 2 7 2 7 without accessories Current take up max A 16 16 16 with accessories Nominal current of fuses A T16A T16A T16A on customer s side Units are conform to EU Guideline 89 336 EWG EMC and 73 23 EWG low voltage and carry the CE mark 230 V 50 Hz Ref No 230V 50Hz LCK 176 LCK 178 LCK 180 230V 60Hz LCK 276 LCK 278 LCK 280 Units of differ
42. oses can be found in our special publication 25 50 14 03 02 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 6 6 1 6 2 Unpacking assembly and setting up Unpacking Goods are packed carefully largely preventing transport damage If unexpectedly some damage is visible on the equipment the carrier or the postal authority has to be informed so that it can be inspected Standard accessories Ref No 1 Bath cover for RC 6 CS HDQ 070 1 Bath cover for RC 20 CS RK 20 KS HDQ 067 2 Bath cover for RC 25 CS HDQ 067 and HDQ 068 1 Bath cover for RL 6 CS RL 7 CS HDQ 073 1 Bath cover for RK 8 CS RK 8 KS HDQ 042 2 Nipplex 13 HKO 026 2 Screw caps HKM 032 2 Closing plugs nicht bei RK 8 CS HKN 065 1 Pump link Pump link bei RK 8 CS LZM 045 Operating instructions Setting up operation as bath thermostat Set up the unit conveniently so that the control panel is towards the front and ensure that the air circulation for the refrigeration system through the grid in the lower part of the unit and the ventilating openings at the back of the unit is not restricted On air cooled units a minimum spacing of 40 cm between grid and wall is recommended Close the drain cock at the back of the bath When operating as bath thermostat no external system connected up it is advisible to ensure internal circulation by removing the closing plugs from the pump flow and return
43. per Heater Corps de chauffe EH 162 F 1 bertemperaturschutz Overtemperature Protection de surpression Umw lzpumpe protection Circulating Pompe de circulation pump F2 bertemperaturschutz Overtemperature Protection de surpression Verdichter protection compressor Compresseur Uberdruckschalter Overpressure switch Disjoncteur de ES 035 surpr ssion M 1 Pumpenmotor Pump motor Moteur de pompe EM 093 M2 Verdichter Compressor Compresseur EMV 001 M3 Ventilator Fan Ventilateur EML 011 Ri Potentiometer Sollwert Setpoint potentiometer Potentiom tre valeur de UD 339 consigne S 1 Netzschalter Mains switch Interrupteur secteur EST 082 X 1 Netzanschluss Mains connection Mains Branchement secteur EKN 008 Netzkabel cable C ble de secteur x2 Anschlussbuchse Connection socket Douille de jonction EQD 037 Rucklaufsicherung Reflow security valve Protection de EQZ 006 refoulement C altpc WOBSER SPLiist SPL_neu RLxx RC_CS doc 08 10 01 Gerateliste Schaltplan RC6CS g ltig ab Serie VO1 List of parts Circuit diagram RC 20 CS at serial no Liste de sch ma connexions RC 25 CS a partir 100V 50Hz 115V 60Hz Teil Nr Bezeichnung Designation D signation Best Nr Part No Ref No Pi ce no No Ref 1 Leiterplatte Printed circuit board Circuit imprim UL 429 3 Netz Mains Secteur A2 Leiterplatte Printed circuit board Circuit imprime UL 430 2
44. s alight i e safety circuit to DIN 12879 has operated Ri 1 kOhm max 10 mA OV pin 12 Pin 14 recorder connection for external temperature correct sign 10 mV K Ri 100 Ohm internal recorder resistance gt 1 MOhm OV pin 3 Pin 15 Pt 100 EXT 4 wire current path Pins 2 9 11 and 15 Pt 100 EXT are parallel to socket 10 S They must not be connected up if socket 10 S is in use In case of a fault the signals appearing at this connector can usefully be employed for the initial investigation of the fault 15 pin connector Cat No EQM 030 Housing for above Cat No EQG 017 YACE0050 14 03 02 1 8 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 3 8 Mains supply output 34 H The 230 V supply voltage is available at the socket 34 H at the back in normal operation and with the unit switched on The maximum current which can be drawn there is 2 A In case of a fault this voltage is switched off This output can be used e g to connect a non return fitting Cat No UD 125 Suitable mating plug Cat No EQS 045 3 9 Remote operation FBC Option As an option the units can be converted for remote control the entire electronics with control panel is removed from the unit and used for remote operation An adapter for the cable connections is required on the basic unit and the control panel is placed in an extra housing The conversion must be carried out by a qu
45. sing viscosity 50 14 03 02 11 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS Pump characteristic 230 V 50 Hz Bee Com EE SONT ES UN RC 6 CS RC 20 CS RC 25 CS RL 6 CS RK8KS RK 20 KS RKBCS RL7 CS 3 4 Control The units employ a Pt 100 resistance thermometer for measuring the bath temperature The temperature is indicated on a green LED display The setpoint is selected on a 10 turn precision potentiometer with locking device and is indicated on the LED display A PID controller produces fully electronic control of the tubular heater in the bath using a triac with burst firing action Tubular heaters with a surface loading of approx 6 W cm are employed YACE0050 14 03 02 12 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 3 5 External controller An additional signal circuit permits connection of an external Pt 100 resistance thermometer to DIN IEC 751 whose indication can be switched to the display a proportion of this signal can be coupled into the control system This arrangement greatly reduces the influence of disturbances on the temperature in the external consuming device The external measurement is also available on the multifunction connector 23 S see Item 3 7 Pin conn
46. switch off and flashing of the right dot in the display Set the switch off point again above the bath temperature and operate the Reset key In case of any failure in Items 8 6 1 and 8 6 2 the unit must immediately be taken out of operation and must be tested by a qualified engineer otherwise its safety is no longer ensured 50 14 03 02 9 33 e LAUDA Low temperature thermostats RC 6 CS RC 20 CS 25 CS RL 6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 9 9 1 9 2 9 3 Maintenance Safety notes in case of repairs Always pull out the mains plug for all repair and cleaning operations Repairs on the control unit with cover removed must only be carried out by a qualified electrician Repairs LAUDA thermostats are largely free from maintenance Dirty thermostatic liquid should be removed through the drain cock and replaced If the unit should become faulty it may be advisable to return only the faulty module where appropriate The control unit can readily be removed after removing the cover releasing 2 screws 2 turns behind the front panel and 2 screws at the rear and disconnecting the electrical connections The module with pump heater temperature probe etc can also be easily separated from the bath There is no provision for a fuse for the complete unit since the necessary 16A fuse corresponds to the mains fuse usually provided at the location The control circuit of the unit has a separate fuse a
47. t of fuses A T16A T16A T16A T16A T16A on customer s side Units are conform to EU Guideline 89 336 EWG EMC and 73 23 EW low voltage and carry the CE mark 230 V 50 Hz Ref No 230V 50Hz LCK 170 LCK 172 LCK 174 LCK 182 230 60Hz LCK 270 LCK 272 LCK 274 LCK 282 230V 50 60Hz LCK 085 Units of different power supplies have different heating capacities as well as different values for power consumption see type lable siehe 4 3 Technical changes reserved YACE0050 14 03 02 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS Typ RC 8 CS RC8KS RK 20 KS Operating temperature range 50 150 45 150 40 150 Ambient temperature range C 5 40 5 40 5 40 Temperature setting C digital with 10 turn potentiometer and numerical display 0 1 C resolution Bath temperature measurement built in digital thermometer with LED display 0 1 C resolution absolute accuracy better than 0 2 of reading 0 2 K temperature probe Pt 100 to DIN IEC 751 External temperature built in separate measuring system using external Pt 100 to DIN measurement IEC 751 4 wire circuit can be switched to LED display accuracy 0 05 of reading 0 1 K without temperature probe Temperature control PID controller with adjustable external prop
48. ticular if the unit is removed for a different use for repair storage etc The method of cleaning or decontamination is determined by the expertise of the user himself If the user has any doubts on whether this may damage the unit he has to contact the manufacturer Spares ordering When ordering spares please specify the equipment type and number on the label This avoids queries and prevents supply of incorrect goods We shall always be happy to deal with queries suggestions and complaints LAUDA DR R WOBSER GMBH amp CO KG P O Box 1251 GERMANY 97912 Lauda K nigshofen Tel 49 0 9343 503 0 Fax 49 0 9343 503 222 E mail info lauda de Internet http www lauda de 0050 19 04 02 35 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS Accessories for LAUDA Low Temperature Thermostats RC and RK RS 232 C Interface R 61 2 Cat No LRT 013 Using the RS 232 C V24 Interface with A D and D A converter it is possible with all suitably equipped computers to read out temperatures from the thermostat and to transmit a temperature setpoint to the thermostat In addition the fault signal can be called up Programming and automatic running of ramps and contact programming are possible Connecting cable PM 351 1 or R 61 2 to thermostat Cat No UK 085 length 1 2 Racks in stainless steel for test tubes centrifuge tubes etc Bath RC 20 up t
49. to no more than 25 K below their flashpoint otherwise there is a possibility that a flammable atmosphere may form see Item 4 2 WARNING Parts of the bath cover may reach temperatures above 70 C when working at higher temperatures The outflow and return pipes of the pumps reach the operating temperature Touching them is dangerous because of high or low temperatures YACE0050 14 03 02 D 6 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 2 Technical Data to DIN 58966 Type RC6CS RC20CS RC25CS RL6CS RL7CS Operating temperature range C 35 150 35 150 35 150 80 100 85 100 Ambient temperature range C 5 40 5 40 5 40 5 40 5 40 Temperature setting C digital with 10 turn potentiometer and numerical display 0 1 C resolution Bath temperature measurement built in digital thermometer with LED display 0 1 C resolution absolute accuracy better than 0 2 of reading 0 2 K temperature probe Pt 100 to DIN IEC 751 External temperature built in separate measuring system using external Pt 100 to DIN IEC measurement 751 4 wire circuit can be switched to LED display accuracy 0 05 of reading 0 1 K without temperature probe Temperature control PID controller with adjustable external proportion and adjustable Xp Temperature variation C
50. ush buttons indicates on the digital display the current setpoint which is provided by the programmer and on which the unit is operating For further details refer to the Operating Instructions for the PM 351 1 YACE0050 14 03 02 5 32 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS RL 7 CS RK 8 CS RK 8 KS RK 20 KS 8 6 Safety circuit The operation of the safety devices of the units has already been described in Item 4 1 After starting up the user should confirm the correct operation of the safety devices If the unit is operating unsupervised we recommend that this check should be carried out daily For proper operation of the low level limiter it is essential that the float switch is operating correctly This can be checked by draining some of the liquid When the level drops below the minimum level about 20 mm above the upper heater winding the pump and the heater are switched off on all poles 4 The pilot lamp Fault For restarting fill in bath liquid and press the Reset key To check the overtemperature limiter its switch off point is gradually reduced When it is below the value shown on the digital thermometer the unit must switch off as under Item 8 6 1 To distinguish between Overtemperature and Level faults the dot on the right in the display is flashing when the overtemperature switch off point has been exceeded Faults in the temperature probe break short circuit also lead to
51. ver may reach temperatures above 70 C when working at higher temperatures The outflow and return pipes of the pumps reach the operating temperature Touching them is dangerous because of high or low temperatures Mains connection Connect the unit only to mains sockets with protective earth contact PE which must not have a fuse higher than T 16 A Mains cable We have ensured that the mains cable and other plug connections do not touch any hot parts Please check that there is no contact between the connecting tubings filled with hot liquid other hot parts and the mains cable Fume extraction Depending on the bath liquid used and the operating method there is a possibility that toxic vapours may be produced In that case it is necessary to provide appropriate fume extraction Pull out the mains plug before cleaning the bath with solvents Provide appropriate fume extraction Before starting up the unit it is absolutely essential to ensure that the bath contains no explosive mixture If necessary purge it with nitrogen Steam production When changing the bath liquid from water to heat transfer fluids for temperatures above 100 C any remaining water including the one in the hoses and external system has to be removed completely Otherwise there is a danger of burns because of delayed boiling Notice only valid for EU countries YACE0050 30 04 02 22 LAUDA Low temperature thermostats RC 6 CS RC 20 CS RC 25 CS RL6 CS

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